JPH06141054A - Network system and management system therefor - Google Patents

Abstract

PURPOSE:To quickly recognize the abnormal fault of a system and to immediate ly inform a network manager by discriminating the priority of a line connection request by a management device and performing a processing for report factors such as a fault or the like in the order of the priority. CONSTITUTION:When the report factor detection part 4 of a network terminal equipment 1 detects the state fluctuation of a state management part 10, a network control part 5 discriminates the priority of the report factor corresponding to a fault detection time processing procedure and then, performs a line connection instruction to a line connection control part 8. The control part 8 reads a network address and the address of a public network 11 registered beforehand in the combination with the priority of the report factor in a constitution information management part 3 and transmits them through the network 11 and a connection port 12A to the line control part 13 of the management device 2. The control part 13 connects the port 12A with a high priority order through a network management part 16 and the state of the device 1 and fault logging are collected at a command/response transmission/reception part 14 to be displayed at a display 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network system composed of a terminal device and a management device connected by a line network, and a management system for managing a failure or the like occurring in the terminal device.

[0002]

2. Description of the Related Art Conventionally, there are various network systems in which a plurality of terminal devices and one management device are connected by a public line network, and a failure or the like occurring in the terminal device is managed by the management device.

In such a network system, a management device is adapted to register and refer to configuration information for a terminal device, collect fault information, give a test instruction and obtain the result, or grasp the state of the device. However, the failure detected by the terminal device is notified to the management device for each terminal device via the public network.

[0004]

However, since each failure independently detected by the terminal device is reported to the management device independently, when a collective failure occurs in a certain block of the terminal device, one management device is dealt with. The number of terminal devices connected per unit time increases. Then, it takes time for the management device to recognize the contents of all the faults because the fault notifications from the respective terminal devices are processed in time series. For this reason,
If important information is included in the failure notification, the confirmation may be delayed. When such a situation occurs, there is a problem that the countermeasure against the important failure is delayed, the system becomes an abnormal state, and the reliability cannot be maintained.

An object of the present invention is to provide a network system capable of promptly recognizing a fault that causes the system to be in an abnormal state and promptly notifying a network administrator even if a plurality of terminal devices are faulty at the same time. And to provide its management method.

[0006]

In order to achieve the above object, the network system of the present invention is a first means for discriminating the priority of a reporting factor such as a failure to be reported to a management device to each network terminal device. And a second line connection request to the connection port of the management device according to the determined priority.
And means for determining the priority of the line connection request, and processing for reporting factors such as a failure in the order of priority.

Further, according to the management system of the present invention, when a reporting factor such as a failure occurs in each network terminal device, information relating to the reporting factor is reported to the management device through a line according to the priority of the reporting factor, and the management is performed. The device is designed to process information about reporting factors in order of priority.

[0008]

According to the above means, the information relating to the reporting factor is reported to the management device through the line corresponding to the priority of the reporting factor, and the management device processes the information relating to the reporting factor in the order of priority. Even if a failure occurs at the same time, it is possible to promptly recognize the important failure that causes the system to be in an abnormal state and notify the network administrator immediately.

As a result, the network administrator can quickly take countermeasures against failures and maintain the reliability of the system.

[0010]

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 is a block diagram showing an embodiment of a network system to which the present invention is applied. A network terminal device 1 and a management device 2 connected by a public network 11 such as a telephone line network or an ISDN line network. It consists of and. In this case, a plurality of network terminal devices 1 are connected, but only one is shown here as a representative.

The network terminal device 1 includes a configuration information management unit 3, a reporting factor detection unit 4, a network management control unit 5,
A command processing unit 6, a command / response transmission / reception unit 7,
Line connection control unit 8, response creation unit 9, state management unit 1
It is composed of 0 and 0.

On the other hand, the management device 2 has a plurality of line connection ports 12A and 12B having different priorities, a line connection control unit 13, a command / response transmission / reception unit 14, a network management control unit 16, a response processing unit 17, and a display 18. It consists of and.

In such a configuration, the network terminal device 1 manages the status of its own device by the status management unit 10, and the reporting factor detection unit 4 monitors the status change in the status management unit 10, When a state change occurs in the management unit 10, the state change is detected.

When the report factor detection unit 4 detects the state change, the report factor detection unit 4 issues a report request including the report factor to the network management control unit 5. When the network management control unit 5 receives the report request from the reporting factor detection unit 4, first, according to the failure detection process procedure shown in the flowchart of FIG.
After determining the priority of the reporting factor, a line connection instruction including the priority is given to the line connection control unit 8 (steps 19-).
21).

A line connection control unit 8 which has received a line connection instruction
Is a public network 1 registered in advance in the configuration information management unit 3 in combination with the priority of the reporting factor.
A read request including designation information of the address 1 (line number) and the network address (address in the network of the management device 2) is issued.

Upon receipt of such a read request, the configuration information management section 3 provides the designated public network 11 address and network address to the line control section 8.

For example, when the priority of 12A of the connection ports 12A and 12B is set to be higher, and the priority of the reporting factor is higher, the configuration information management section 3 determines that the connection port 12A The line connection control unit 8 is notified of the designation information of the line address (line number) and the network address (in-network address of the management device 2) to which is connected.

Therefore, the line connection control unit 8 which has received the address and the network address of the public network 11 uses the address and the network address of the public network 11 through the public network 11 and further through the connection port 12A to the management device. The call is transmitted to the second line connection control unit 13.

On the other hand, the line control unit 13 of the management device 2 which receives the call via the connection port 12A makes a line connection request including designation of the connection port 12A to the network management control unit 16.

The network management control unit 16 which has received the line connection request follows the processing procedure at the time of failure detection shown in the flowchart of FIG.
The priority of the connection port 12A in the inside is determined, the line connection request to the connection port 12A having a higher priority is preferentially selected, and the connection acceptance instruction including the designation of the connection port 12A is given to the line connection control unit 13. (Steps 28-3)
1).

The line connection control unit 1 which has received the connection acceptance instruction
3 accepts only the specified connection port 12A,
Others reject the connection and report the completion of the connection including the designation of the connection port 12A to the network management control unit 16.

Upon receipt of the connection completion, the network management control unit 16 issues a command transmission instruction including an instruction to collect the status of the terminal device 1 and fault logging to the command creation unit 15 (step 34).

Upon receipt of the command transmission instruction, the command creating section 15 creates a command according to the status of the terminal device 1 and an instruction to collect fault logging, and sends the created command to the command / response transmitting / receiving section 14. To do.

The command / response transmission / reception unit 14 transmits the command transmitted from the command generation unit 15 to the terminal device 1 connected to the public network 11 via the line connection control unit 13 and the connection port 12A. To do.

On the other hand, the line connection control unit 8 of the terminal device 1 determines that the connection with the management device is completed by the arrival of the command, and sends the received command to the command / response transmission / reception unit 7 (step 22).

When the command / response transmitting / receiving section 7 receives a command via the line connection control section 8, it sends the command to the command processing section 6. Then, the command processing unit 6 that has received the command decodes the content of the command and makes a read request for status and fault logging to the network management control unit 5 waiting for command data from the management device 2.

The network management control unit 5, which has received the read request, makes a read request for various data to the state management unit 10 (steps 23, 24, 25). The status management unit 10 that has received the read request provides the network management unit 5 with status information such as a failure according to the request type.

Therefore, the network management unit 5 sends the read status information to the response creation unit 9. The response creation unit 9 that has received the status information creates a response based on the received information, and manages the created response from the command / response transmission / reception unit 7 via the line connection control unit 8 via the public network 11. It is transmitted to the device 2 (steps 26 and 27).

On the other hand, the response processing unit 17 which receives the response from the terminal device 1 via the line connection control unit 13 and the command / response transmission / reception unit 14 of the management device 2 sends the response to the network management control unit 16. The status information of the terminal device 1 received as is notified.

The network management control unit 16 notified of this status information displays the status information as a message on the screen 18 of the display 18 (steps 36 and 3).
7).

[0032]

As described above, according to the present invention, the information relating to the reporting factor is reported to the management device through the line corresponding to the priority of the reporting factor, and the management device processes the information relating to the reporting factor in order of priority. Therefore, even if a plurality of terminal devices simultaneously fail, it is possible to promptly recognize an important failure that causes the system to be in an abnormal state and immediately notify the network administrator.

As a result, the network administrator can quickly take countermeasures against failures and maintain the reliability of the system.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a network system to which the present invention is applied.

FIG. 2 is a flowchart showing a processing procedure when a failure of the network terminal device in FIG. 1 is detected.

FIG. 3 is a flowchart showing a processing procedure when a failure of the management device in FIG. 1 is detected.

[Explanation of symbols]

1 ... Network terminal device, 2 ... Management device, 3 ... Configuration information management unit, 4 ... Report factor detection unit, 5 ... Network management control unit, 6 ... Command processing unit, 7 ... Command / response transmission / reception unit, 8 ... Line connection Control unit, 9 ... Response creation unit, 10 ... Status management unit, 11 ... Public network, 12 ... Line connection port, 13 ... Line connection control unit, 14 ... Command / response transmission / reception unit, 15 ... Command creation unit, 16 ... Network Management control unit, 17 ... Response processing unit, 18 ... Display.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenzo Iioka Kenzo Iioka 810 Shimoimaizumi, Ebina, Kanagawa, Ltd. Office Systems Division, Hitachi, Ltd. No. 2 in Hitachi Information Network, Inc.

Claims (2)

[Claims] 1. In a network system comprising a plurality of network terminal devices and a management device which is connected to these network terminal devices via a public network and collectively centrally manages the network terminal devices, each network terminal device is managed by The management device comprises first means for determining the priority of a reporting factor such as a failure to be reported to the device, and second means for making a line connection request to the connection port of the management device according to the determined priority. The third aspect of the present invention is a network system comprising: third means for determining the priority of the line connection request, and processing for reporting factors such as a failure in order of priority. 2. In a network system comprising a plurality of network terminal devices and a management device which is connected to these network terminal devices via a public network and collectively centrally manages the network terminal devices, a failure or the like in each network terminal device. When a reporting factor is generated, a network system characterized in that information relating to the reporting factor is reported to the management device through a line according to the priority of the reporting factor, and the management device processes the information relating to the reporting factor in order of priority. Management method.